Cooking Steps

1. 

   Step1:Soften butter thoroughly. Add sugar and stir well.

2. 

   Step2:Sieve the yolk with a spoon. Add the butter mixture from the previous step.

3. 

   Step3:Sift in corn starch and low gluten flour.

4. 

   Step4:Knead it by hand until it's roughly in a ball.

5. 

   Step5:Take out half of the dough and mix with cocoa powder.

6. 

   Step6:The two kinds of dough are rolled into strips.

7. 

   Step7:The two kinds of noodles are pinched together. It's not necessary to twist them into the obsessive-compulsive state in the picture. This dough is easy to break, so it should be handled lightly.

8. 

   Step8:Then cut it into 40 equal parts.

9. 

   Step9:Each into a ball.

10. 

    Step10:Put it on the baking tray covered with oilpaper. Press it in the middle with your fingers.

11. 

    Step11:Bake in a 170 degree preheated oven for about 15 minutes.